top of page

Costly legal mistakes when opening your company

Writer: Marcus Castelo Branco
Marcus Castelo Branco
7 hours ago
2 min read


Opening a company involves strategic decisions that go far beyond the trade name or the business model. Legal details overlooked at the outset often lead to conflicts, fines and losses that could have been avoided with planning. Below are three recurring mistakes that directly affect the operational and financial health of new ventures.


1. Generic articles of association: the root of partner disputes


Much of the litigation between business partners stems from poorly drafted clauses. Generic articles of association (the kind based on ready-made templates found online) ignore fundamental aspects of the company's reality, such as specific risks, the line of business and the dynamics between the partners.

When documents of this kind fail to define individual rights, management criteria, clear rules for partners joining and leaving, or deadlock resolution mechanisms, any operational disagreement quickly escalates into a legal dispute.

Common effects of a poorly structured agreement include:

  • Administrative paralysis

  • Difficulty making decisions

  • Litigation and partial dissolution

  • Lost opportunities due to legal uncertainty

Solid articles of association are not red tape: they are the governance foundation that provides security and continuity.


2. Incorrect CNAE code and lack of licensing: a mistake that multiplies


Choosing the wrong CNAE (Brazil's National Classification of Economic Activities) code is one of the most frequent mistakes when opening a company. It does not only affect municipal licensing: it changes the tax regime, withholdings, tax rates and even eligibility for Simples Nacional (Brazil's simplified tax regime for small businesses). In addition, many entrepreneurs start operating without mapping out all the activities they will actually carry out. The result is an irregular operation without the necessary documentary coverage.

Practical consequences of this mistake include:

  • Fines for incompatible activity

  • Risk of tax assessments

  • Inability to issue mandatory documents

  • An artificially higher tax burden

  • Activities blocked for lack of permits

This problem stems from not studying the operation beforehand and from the lack of an integrated analysis of municipal, state and federal legislation.


3. No initial compliance or minimum governance


New companies often treat compliance as something only large corporations need. This misconception undermines, from the very start, essential processes that should already be organized in the first months of activity.

Basic routines, such as hiring policies, document control, management of internal responsibilities, operational communication and labor risk prevention, are neglected and leave room for vulnerabilities.

Without a minimum level of governance, risks increase quickly:

  • Early labor liabilities

  • Weak contracts with suppliers and partners

  • Loss of strategic information or intangible assets

  • Financial and corporate disorganization

Initial compliance is not a luxury: it is a mechanism for protection and efficiency.


Start on the right foot


Having legal counsel from the moment the company is opened reduces rework, helps avoid losses and helps align each decision with legal requirements and the needs of the business. Legal planning is a strategic step, not a detail, and it directly influences the company's capacity for sustainable growth.

 
 
 

Comments


whatsapp.png

©2026 by Lozano e Castelo Branco Sociedade de Advogados.

bottom of page